kolzer



(No Model.) 2 Sh66t8--Sh66t 1. 7 J. KOLZER.

TELEGRAPH REPBATER.

Patented Jan. 17, 1888.

M ATTORNEYS N. PETERS. Phob-Liflwmpher. Wishingioll. I74 (l V UNITEDSTATES PATE T OFFICE.

JOSEPH KoLzEn, or pnisnnne, PBUSSIA, GERMANY.

TELEGRAPH-REPEATER.

SPECIFICATION forming part of Letters Patent No. 376,661, dated January17, 1888.

Application filed April 8, 1886. Serial No. 198,270. (No model.)Patented in Germany May 31,1884, No. 30,517; in France June 10,1884. No.162,342; in Belgium June 11, 1884, No. 65,449; in England June 14,-1884,No. 8,990; in Italy June 30,1884,

XXXIII, 467; in Sweden October 17,1884; in Austria-Hungary November'lii,1884, 34/2,,36 and XVIII/2,218,- in Spain No. vemher 15, 1884, No. 441,-in Norway December 4, 1885, and in Denmark January 12, 1886, No. 903. s

T0 at whom it may concern:

1 Be it known that I, J OSEPH KoLzER, a subject of the King of Prussia,residing at Duisburg, in the Kingdom of Prussia, German Empire, haveinvented new and useful Improve ments in Telegraphic Apparatus, (forwhich I have obtained patents as follows: in Great Britain, N o. 8, 990,dated June 14, 1884; in Belgium, No. 65,449, dated June 11, 1884; in

1884,) of which the following is a specification.

My invention relates to improvements in telegraphic apparatus wherebymessages can be transmitted from stations in one main line to stationsin a second main line.

In carrying out my invention I make use of relays of specialconstruction, such as are de-' scribed in my prior application filedAugust 14, 1884, Serial N 0. 140,597, an arrangement of circuitclosingkeys, registers, a novel commutator, and connections between the mainlines, whereby the above-mentioned result is accomplished, all of whichis more fully pointed out in the following specification and claim, andillustrated in the accompanying drawings, in which" Figure 1 representsa plan view of the operating parts and connections; and Fig. 2 is aperspective view, on a larger scale than the preceding figure, of arelay.

In the drawings, the letters M N and O W respectively designate the twomain lines. V is the central or connecting station. R and R are therelays thereof. S is a register. B B are the batteries in the lines. Tisa fingerkey of the connecting station V, and U a'commutator, allarranged as shown.

The armature-lever O of the relay R is provided with an extension, 0,having thereon a head-piece, a,vwhich projects upward and is bent overto form a hook, on the end of which;

stops, the latter having an insulated point. j

is a button or stud, which projects from the insulating-layer 0 andformsa stop for the spring-arm i, so that the entire surface of thelattercannot bearupon the insulating-layer. The spring-arm i isconnected, by a spiral spring, 9', to a binding-post, h, insulated fromk, which the relay R, andthe said spring is made of' very thin wire, sothat it can yield to the move 4 ment of the armature-lever 0 withoutretarding the said motion.

' The armature lever 0 of the relay R is con-. struct-ed and arranged asthe armature-lever of these t o Morse relays,or by two polarized relayssimilarly constructed,in combinationwith suitable connections, thesideward connection of the two main-line circuits 0 W andMN approachingone another is effected. A part 'thcrelay R, just described. By the useof of the line-battery is short circuited, so that I no special localbattery is necessary. The posilion of the point of connectionof the mainline depends onlyon the reciprocal position of the circuitsto be united,and must be so chosen,

if possible, that the circuits are divided into' equal parts. By thissideward connection of thetwo main lines is simultaneously produced boththe possibility of a sideward transmission from a main-line circuit toamain-line circuit and the lengthwise transmission from a mainlinecircuit to a main-line circuit. The first is accomplished by separatingat the point of connection one branch of one of the main cirand thelatter is accomplished if at the point of connection the easterly branchof one mainline circuit and the westerly branch of the otherline-circuit are conducted to the ground.

The two main lines M N and O Ware, con- 7 nected with each other atthecentral station,

V, and for transmitting a message-say from M of the circuit M N isseparated and cona station in the main line M N to the main line 0 W-theholes III and IV of the commutator U are plugged, and to disconnect thelines the plugs are removed from holes III and IV and inserted in holesI and II. In the latter case the batteries B B remain in the linecircuit. When'the holes III and IV of the commutator U are plugged, asbefore stated, to throw the main lines in communication with each other,and all the finger-keys are in their nor mal or open position, thecurrent in the linecircuit M N takes the following course: from a point,N,' in the line to commutator U, over plate 1 thereof to wire 1, througharmaturelever O of relay R, contact 70, spring-arm 0;, springbinding-screw h,the coils of relay B, through wire 2,and back to plate 5of the commutator, through the medium of wire 3. From plate 5 thecurrent passes overplugged hole IV to plate 6, and from thence to onepole of the battery B through wire 4, and continues in the circuit MNalong wire 5, while from the other pole of the battery B the currentflows.

in a direction from pointO in the line 0 Wto plate 4 of the commutatorII, over plate 4, through wire 6 to the armature-lever O C of the relayB, through contact k, spring-arm 6, spring 9, binding-post h to relay B,through the wire 7. The currentcpasses through the coils of this relayand returns to the commutator through wire 8, which is connected withplate 2, and then over plate 2, plugged hole III, plate 3, through wire9 to one pole of battery B, through wire 10 to the register S, throughwire 11 to the finger-keys T, and continues in the line 0 WV along wire12. I

If a key is depressed in any station on the line M N, the writing orregistering instruments in all the stations on the line 0 WV areactuated. For instance, if at the station V a finger-key is depressed,all the armature-levers of the receiving-instruments in the circuit 0 Wfall off, the armaturelever of the relay R at station V is attracted,and closes first, -by means of spring-arm i and stop I, the localcircuit of battery B to relay B, so that the position of thearmature-lever C G of the latter remains unchanged from the positionshown in the drawings, and only after this can the current pass throughthe contact k to springarm 5, whereby the current is broken inlinecircuit M N. All the instruments in the stations on the mainlines MN and O Ware consequently set in operation. When the finger-key at thestation V is released and thereby thrown out of contact, the current isreestablished in the main line 0 W, as the contact through 73 k at relayR had not been broken previously. The armature-lever GO returns to itsnormal position, whereby the circuit M N is first closed by contact kand spring-arm z, and the 1 Witnesses: local current through spring-arm'i and stop Z WALTER H. SCHULZ, is broken. If it be conceived that thebranch CARL BADE.

ducted to the ground at the station V, I have in the remaining lines ofthe circuit 0 W and N a sidewise translation from a main line, 0

W, to a main-line current, N.

If the branches M and W of the two main lines M N and O W are separatedat station V and grounded, I have in the remaining line, 0 N, the.lengthwise translation from a main-line circuit to a main-line circuit.The Morse or polarized relays previously described can be replaced byMorse registers, the anchorlevers of which are constructed in a. similarmanner as those of the relays. The registers in this case perform boththe function of writing and transmitting.

The commutator used and necessary in the abo v e described arrangementconsists of a base and six plates, 1, 2, 3, 4, 5, and 6, and plates 3and 4 are separated by a hole, I, plates 1 and 6 by a hole, II, plates 2and 3 by a hole, III, and plates 5 and 6 by a hole, IV. The

holes separating plates 3 and 4 and plates 1 .No. 140,597, filed August14, 1884, and in my Patents No. 311,330, dated January- 27, 1885, andMarch 9, 1886, No. 337,590, shown telegraphic apparatus whereby messagescan be transmitted from a remote station in a main line to a remotestation in a branch line, from a remote station in a branch line to aremote station in a main line, and also from a station on a branch lineto a home or receiving station that has been disconnected froma mainline.

The presentinvention differs from the above so far as the specialarrangement of the circuits and form of the commutatoris concerned, andrelates altogether to the means whereby messages can be transmitted overtwo wires.

What I claim as new, and desire to secure by Letters Patent, is

In a telegraph apparatus, the combination,

JOSEPH KOLZER.

IIO

